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Professional Foundry Shell Mold Casting OEM Service Cast Iron Valve Parts Bonnet
US$9.00
200-499 Pieces
US$8.50
500-999 Pieces
US$7.80
1,000+ Pieces
Product profile
Customization
AvailableType
Valve BonnetMachining
CastingModel NO.
Valve BonnetMaterial
Cast Iron , Alloy Steel , Carbon StStandard
En, ANSI, BS, DIN, JISProduct
Valve BonnetProcess
Shell Mould CastingTransport Package
Plywood or Wooden Case, Pallet (as Per Customer'sSpecification
CustomizedTrademark
SYI or OEMOrigin
Shanxi, ChinaProduction Capacity
300 Ton/Tons Per MonthKey features
OEM/ODM Service: Accepts custom drawings, samples, or ideas for valve bonnet casting.
Shell Mould Casting: Uses automatic production lines for high dimensional accuracy and quality.
Strict Quality Control: Comprehensive inspection from raw materials to finished products using advanced tools.
Wide Material Options: Available in Cast Iron, Alloy Steel, and Carbon Steel with various standards.
ISO Compliance: Casting tolerance meets ISO8062 and ISO2768 standards.
Professional Expertise: Established in 1988 with rich experience in OEM casting products.
Fast Lead Time: Average lead time is one month for both peak and off-season periods.
Flexible Payment: Supports LC, T/T, D/P, PayPal, Western Union, and small-amount payments.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2015-03-19 CertifiedNearest Port: Tianjin PortAverage Response Time: ≤6.13h CertifiedTerms of Payment: LC, T/T, D/P, etc.
AI-Powered supplier vetting
SummarySYI Group, also identified as SYI Industrial Co., Ltd., is a China-based limited company established in 1999 and operating from Shanxi. Its reported product scope includes castings, forgings, ductile iron pipes and fittings, manhole covers, valves, flanges, aluminum castings, and municipal products. The supplier reports ISO 9001:2015 certification and additional TUV, BSI Kitemark, SGS, BV, FM, and WRAS credentials or listings. Manufacturing evidence includes six production lines, automatic moulding equipment, CNC machining, laboratory facilities, in-house tooling, and 21–30 quality-control staff. It exports to multiple global regions and states that exports represent 90% of sales. Evidence supports production capability and certification strength, while after-sales service, financial credibility, innovation outcomes, customization performance, and customer cases cannot be conclusively assessed from the provided information.
Supplier typeThe supplier is described as a combined business entity and limited company, operating in industrial equipment, components, tools, hardware, metallurgy, machinery, construction, and related sectors. Its stated product range is centered on castings, ductile iron products, manhole and municipal products, valves, flanges, and aluminum parts.
CertificationsThe supplier explicitly reports an ISO 9001:2015 certificate and states that it is TUV, BSI Kitemarked, SGS, BV, FM certified, and WRAS listed. These statements provide direct evidence of multiple quality, product, or compliance credentials, although the specific scope and validity of each additional credential are not detailed.
Production capacityProduction capability is supported by a reported 67,275.83 m² manufacturing plant, six production lines, automatic moulding equipment, CNC machining centers, laboratory facilities, in-house tooling, and 21–30 quality-control staff. The supplier also reports one-month fulfillment timing in both peak and off-peak seasons and serves multiple export regions.
Customization capabilityThe supplier lists OEM industrial castings and maintains in-house pattern and tooling shops, which directly supports the ability to develop or manufacture customer-specific cast components. Nevertheless, no examples, minimum requirements, engineering workflow, or documented customization projects are provided.
Product Q&A
Q:What materials are available for the valve bonnet?
A:
We provide cast iron, alloy steel, and carbon steel options, complying with standards such as EN, ANSI, BS, DIN, and JIS.
Q:Do you accept OEM or ODM orders?
A:
Yes, we welcome OEM/ODM requests. We can manufacture based on your drawings, samples, or even just an idea.
Q:What is the manufacturing process used?
A:
We use shell moulding cores casting on automatic production lines, followed by CNC machining, surface treatment, and rigorous inspection.
Q:What is the typical lead time for production?
A:
The average lead time is one month, regardless of whether it is peak season or off-season.
Q:What payment terms do you support?
A:
We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.
Send Inquiry
*To:
SYI Industrial Co., Ltd.
SYI Industrial Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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